Carbureter needle-valve



V. E. WASSERLEIN.

CARBURETER NEEDLE VALVE.

APPLlcATmN HLED ocT. 2. 1817.

1,34%922. Patented J uly 27, 1920.

2 SHEETS-SHEET I.

v E wAssERLElN CARBURETER NEEDLE VALVE.

APPLICATION FlLED OCT- 2. 1917. 1,347,922. Patented July 27, 1920.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT OFFICE.

VICTOR E. WASSERLEIN, OF NEW YORK, N. Y., ASSIGNOR T0 WASSERLEIN, FROES COMPANY, INC., A CORPORATION OF NEW YORK.

To aZZ whom t mag/ conccrn:

Be itl known that I, VIo'roR E. VAssER- LEIN, a citizen of the United States residlng at New York, in the county of New York and State of New York, have invented certain new` and useful Improvements in Carbureter N eedle-Valves, of which the following is a specification.

This invention relates to carbureters and has more especial reference to improvements in fuel fiow regulating valves.

The invention has for its principal object to provide a needle valve for use in carbureters and like charge forming devices, whereby the flow of fuel therefrom can be minutely Controlled by the operator in order that the leanness or richness of the charge may be properly adjusted to allow perfect functioning of the motor receiving the same.

It is the more specific object of the invention to provide a novelly constructed valve, the same being capable of allowing a great number of adjustments whereby to regulate the flow of combustible gas.

The improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings, in connection with the specific description hereinafter contained, and wherein the preferred embodiment of the invention is disclosed for the purpose of imparting a full understanding of the same;

In the drawings Figure 1 is a side elevation of the improved valve in its extended or elongated position;

Fig. 2 is a vertical transverse section therethrough Fig. 3 is a side elevation of the valve in its contracted position; and

Fig. ll is a fragmentary Vertical section through a carbureter showing theiimproved valve arranged in working position thereon.

Similar characters of reference refer to similar parts throughout the several views of the drawings.

Having more particular reference to the drawings, l represents the needle of the valve, the lower extremity of which is tapered as at 2 for an obvious purpose while the remaining end is screw threaded and is adapted for engagement with the casing of the carbureter c. In this connection, it is to be understood that the tapered portion 2 of the needle 1 is arranged in proximity of specification of Letters Patent.

Application filed October 2, 1917. Serial No. 194,410.

the fuel outlet portof the carbureterthe purpose of which will be subsequently apparent. i

.Ahelix 3 is arranged about the needle l and has the lower portion or inner convolution of the same secured to the needle l at z a point in proximity of the tapered portion 2, while the upper or outer convolution of the heliX is secured to a diskor similar element 4:, this element being rotatably mounted upon the needle 1 and provided with a spiral collar 5 havinga spiral gear 6 meshing therewith and carried on the adjacent end of an Operating shaft, which/shaft is mounted in suitable bearings (not shown) in the carbureter lc and has its remaining end (not shown) extended to a point beyond the same whereby to facilitate rotation thereof. Inasmuch as the means for rotating the disk and the helix 3 may be varied in design and construction, I do not intend to confine myself to any one embodiment but may vary the same, such as conditions or preference may dictate. The helix 3 may be and preferably is formed of fiattened spring metal, the tendency of which is to return to a normal position subsequent to elongation or contraction. In this connection it is to be also understood that the helix 3 is arranged at a point in proximity of the fuel outlet port of the carbureter.

When using the improved needle valve in a carbureter such as indicated by the refertion or contraction of the helix 3. Ob-' viously by contracting the helix 3, the relative positioning of the same and the fuel outlet port of the carbureter will be so adjusted as to dec'rease the flow of fuel. However, by rotating the Operating means in a direction to cause elongation of the helix the opening between the port and the helix will be increased, thus permitting a greater flow of fuel and as a consequence, a richer charge. Due to the inherent resiliency of the helix 3 it will be readily understood that the same will be caused to instantly return to its normal position when released. Hence, adjustment of the same is such as to cause the rapid response of the carbureter in the forming of the desired combustible charge adpated for introduction into the cylinders of the motor receiving the same.

Attention is directed to the fact that the needle 1 is fixedly mounted upon a suitable support and has no movement With relation to the fuel outlet port of the carbureter; the helix 3 being the only movable element and this being operated upon rotation of the means engaged With the outer or free.

'2. A valve Vcomprising a pin, and a helix varranged about said pin and longitudinally adjustable with respect thereto for regulatingthe operation of said'valve.

A Valve comprising a pin, a helix arranged about said pin having the inner convolution thereof secured to one end of said pin, and said heliX being longitudinally adjustable With respect tor-said pin for regulating the operation of said valve.

4;. A valve comprising a pin, a resilient 'helix arranged about said'pin and longitudinally adjustable With respect thereto for regulating the operation of said valve,

Lazy/,922

the inner convolution of the helix being secured to the pin in proXimity of one end thereof. p

5. A Valve including a pin, and a longitudinally'adjustable spring helix arranged about said pin and connected thereto at one end, said helix being adjustable to permit' Varianee of its length and diameter.

6. A Valve including a fixedly mounted pin in proximity to the Valve seat and having a tapered end, a disk'mounted adjacent the end opposite the tapered end, a helix of flattened material the' inner convolutions' of which issecured to the pin and means for longitudinally moving said helix on the pin for regulatingsaid Valve. p

7 A Valve including a fixedly mounted pin in proximity to lthe Valve seat and having a tapered end, a disk mounted adj acent the end opposite the tapered end, a helix arranged about the pin and engaging the disk, the inner convolution of the helix being securedto the pin, the convolutions of said helix adapted for longitudinal adjustf nient Withv respect to said pin to creep downwardly upon the tapered end and means for longitudinally adjusting said helix for the purpose described.

In testimony whereof I afiix my signature hereto. a

VICTOR E. WASSERLEIN. 

